Dropbox vs IBM Interview Questions
Dropbox lists 22 LeetCode interview questions while IBM lists 115. They share 4 problems — 18% of Dropbox's bank and 3% of IBM's. Focus on the overlap first, then drill into 18 Dropbox-only and 111 IBM-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 4 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Dropbox and IBM.
Step 2 — Company-specific depth: Add Dropbox-specific problems like Simple Bank System, Minimize Malware Spread, Web Crawler and IBM-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Dropbox skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
4 Shared Questions
High-priority problems to practice for both Dropbox and IBM.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Median of Two Sorted Arrays | Hard |
| Letter Combinations of a Phone Number | Medium |
| Merge Intervals | Medium |
Unique to Dropbox (18)
Problems in Dropbox's list that do not appear at IBM.
| Problem | Difficulty |
|---|---|
| Simple Bank System | Medium |
| Minimize Malware Spread | Hard |
| Web Crawler | Medium |
| Web Crawler Multithreaded | Medium |
| Find Duplicate File in System | Medium |
| Number of Valid Words for Each Puzzle | Hard |
| Game of Life | Medium |
| Word Pattern | Easy |
| Word Pattern II | Medium |
| Seat Reservation Manager | Medium |
| Minimize Malware Spread II | Hard |
| Design Hit Counter | Medium |
Unique to IBM (111)
Problems in IBM's list that do not appear at Dropbox.
| Problem | Difficulty |
|---|---|
| Find the Smallest Divisor Given a Threshold | Medium |
| Gray Code | Medium |
| 3Sum | Medium |
| Exclusive Time of Functions | Medium |
| Integer to Roman | Medium |
| Minimum Operations to Make Columns Strictly Increasing | Easy |
| Fizz Buzz | Easy |
| Roman to Integer | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Count Ways to Group Overlapping Ranges | Medium |
| Meeting Rooms II | Medium |
| Rotate Image | Medium |
Frequently Asked Questions
How many LeetCode questions do Dropbox and IBM share?
Dropbox and IBM share 4 LeetCode interview questions. 18 problems appear only in Dropbox's list and 111 appear only in IBM's list.
What topics overlap most between Dropbox and IBM?
The most common shared topics between Dropbox and IBM are Array (3 shared questions), Hash Table (2 shared questions), Binary Search (1 shared questions), Divide and Conquer (1 shared questions), String (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Dropbox or IBM?
Dropbox has 2 Easy, 10 Medium, and 10 Hard questions. IBM has 33 Easy, 73 Medium, and 9 Hard questions. Dropbox has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Dropbox and IBM?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 18 Dropbox-specific and 20 IBM-specific questions to round out your prep.